Without knowing the chemical or molecular formula of the compound and without knowing the atomic weights of the individual elements involved in the chemical formula it is very difficult to calculate the molar mass of the respective compound. The molar mass of glycerol, methanol, sodium hydroxide and soap (stearic acid) is 92.094 g/mol, 32.042 g/mol, 39.997 g/mol, and 284.484 g/mol, respectively. The molar mass of the sodium hydroxide is 40 g/mol. Now we must express the molecular weight of the sodium hydroxide in molar mass. Molecular weight of the NaOH= 23 + 1 + (16) = 40. Molecular weight of the NaOH = Atomic weight of the Na + Atomic weight of the H + Part B The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). What is the mass of 2.30 x 1022 formula units of NaOH (Molar mass 40.0 g/mol) Express the mass in grams to three significant figures. Now we can calculate the molar mass or molecular weight of the sodium hydroxide by using the formula below. Part D Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as making paper. What mass of KHP was titrated H4O4 (reacted completely) by the sodium hydroxide solution 84. The atomic weight of the sodium is 23, the atomic weight of the hydrogen is 1, and the atomic weight of the oxygen is 16. KHP (molar mass 5 204.22 g/ mol) has one acidic hydrogen. We should know the atomic weights of the sodium, hydrogen and the oxygen to calculate the molar mass of the sodium hydroxide. The molar mass is a physical property, which is defined as the mass of a substance divided by its amount of substance in moles. We should know the chemical formula of the sodium hydroxide to calculate the molar mass of it. 58 / Monday, Ma/ Rules and Regulations Date of issue: Version: 1.0 EN (English) SECTION 1: Identification of the substance/mixture and of the company/undertaking. In the question it is asked to calculate the molar mass of the sodium hydroxide. Sodium Hydroxide, 3.0N (3.0M) Safety Data Sheet according to Federal Register / Vol. We should know the molecular or chemical formula of the respective compound. Hint: The molar mass of any compound can be calculated by adding the atomic weight of the individual atoms involved in the chemical formula of the respective chemical compound.
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